EP 3382828 A1 20181003 - INHERENTLY SAFE LASER ARRANGEMENT COMPRISING A VERTICAL CAVITY SURFACE EMITTING LASER
Title (en)
INHERENTLY SAFE LASER ARRANGEMENT COMPRISING A VERTICAL CAVITY SURFACE EMITTING LASER
Title (de)
EIGENSICHERE LASERANORDNUNG MIT EINEM VERTIKAL OBERFLÄCHENEMITTIERENDEN LASER
Title (fr)
AGENCEMENT DE LASER À SÉCURITÉ INTRINSÈQUE COMPRENANT UN LASER À CAVITÉ VERTICALE ÉMETTANT EN SURFACE
Publication
Application
Priority
EP 17164121 A 20170331
Abstract (en)
The invention describes a laser arrangement comprising at least one Vertical Cavity Surface Emitting Laser being arranged to emit laser light (150), the at least one Vertical Cavity Surface Emitting Laser comprises a first electrode (100), a semiconductor substrate (101), a first distributed Bragg reflector (110), an active layer (115), a second distributed Bragg reflector (120) and a second electrode (125), wherein the active layer (115) is sandwiched between the first distributed Bragg reflector (110) and the second distributed Bragg reflector (120), wherein the first electrode (100) and the second electrode (125) are arranged to provide an electrical current across the active layer (115) to generate laser light (150), and wherein the laser arrangement comprises an optical structure (140) arranged to increase a laser emission angle (156) of the laser light (150) for increasing eye safety of the laser arrangement, wherein the optical structure (140) is an integrated part of a semiconductor layer structure of the laser arrangement. The invention further describes a lighting device comprising such a laser arrangement and a method of manufacturing such a laser arrangement.
IPC 8 full level
H01S 5/026 (2006.01); H01S 5/183 (2006.01); H01S 5/42 (2006.01)
CPC (source: EP KR RU US)
H01S 5/0064 (2013.01 - US); H01S 5/026 (2013.01 - EP KR); H01S 5/0425 (2013.01 - US); H01S 5/1039 (2013.01 - US); H01S 5/18305 (2013.01 - US); H01S 5/18308 (2013.01 - EP KR); H01S 5/18327 (2013.01 - US); H01S 5/1833 (2013.01 - RU US); H01S 5/18386 (2013.01 - US); H01S 5/423 (2013.01 - EP KR RU US)
Citation (search report)
- [XAI] US 2007071056 A1 20070329 - CHEN YE [US]
- [XAI] EP 0488772 A1 19920603 - XEROX CORP [US]
- [XI] GB 2434914 A 20070808 - UNIV COLLEGE CORK NAT UNIV IE [IE]
- [XI] US 5956364 A 19990921 - JIANG WENBIN [US], et al
- [XI] EP 1329961 A2 20030723 - TOSHIBA KK [JP]
- [A] WO 2015091459 A1 20150625 - KONINKL PHILIPS NV [NL]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3382828 A1 20181003; BR 112019020043 A2 20200428; CN 110537304 A 20191203; CN 110537304 B 20210420; EP 3602704 A1 20200205; EP 3602704 B1 20201125; JP 2020512700 A 20200423; JP 6918964 B2 20210811; KR 102256795 B1 20210528; KR 20190125468 A 20191106; RU 2723143 C1 20200609; US 2020028329 A1 20200123; WO 2018178328 A1 20181004
DOCDB simple family (application)
EP 17164121 A 20170331; BR 112019020043 A 20180330; CN 201880022873 A 20180330; EP 18716189 A 20180330; EP 2018058274 W 20180330; JP 2019553390 A 20180330; KR 20197030073 A 20180330; RU 2019134812 A 20180330; US 201916585078 A 20190927